kernel/git/next/linux-next.git/tools/testing/selftests/rseq, branch master

Merge branch 'master' of https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git

2026-07-10T12:27:31+00:00

Merge branch into tip/master: 'locking/futex'

2026-07-10T10:17:48+00:00

# New commits in locking/futex: 157a9b22ff76 ("selftests/futex: Use thread synchronization helpers instead of usleep()") 86620fb9d37b ("selftests/futex: Provide thread creation and synchronization helpers") 50c121e5a57a ("selftests/futex: Dynamically skip unsupported tests") 90a0286c7d35 ("selftests/futex: Add FUTEX_LOCK_PI owner-exiting coverage") 553bd67a9032 ("selftests/futex: Migrate robust_list to harness") 4f22ba7eee3e ("selftests/futex: Migrate futex_priv_hash to harness") 9b19fbb3a6c5 ("selftests/futex: Migrate futex_numa_mpol to harness") 7fe733f11215 ("selftests/futex: Migrate futex_requeue_pi_signal_restart to harness") 4559deb73828 ("selftests/futex: Migrate futex_requeue_pi_mismatched_ops to harness") b7d837c2d49e ("selftests/futex: Migrate futex_requeue_pi to harness") d0f7df9bb778 ("selftests/futex: Migrate futex_requeue to harness") 78834d8b9c99 ("selftests/futex: Migrate futex_wait_uninitialized_heap to harness") dccef66d850b ("selftests/futex: Migrate futex_wait_private_mapped_file to harness") 0d65d1abb5e4 ("selftests/futex: Migrate futex_wait to harness") a894f6f40332 ("selftests/futex: Correct validation logic in waitv") e531301dd8fa ("selftests/futex: Migrate functional tests to harness") dfa2f2378fb1 ("selftests/futex: Remove static keyword from 'head'") 4903ab0c83f0 ("futex: Remove unnecessary NULL check before kvfree()") d7b2769f8dba ("selftests/rseq: Replace glibc-specific __GNUC_PREREQ with portable check") Signed-off-by: Ingo Molnar

selftests/rseq: Fix a building error for riscv arch

2026-07-08T16:59:14+00:00

RISC-V rseq selftests include asm/fence.h from tools/arch/riscv, but the rseq Makefile only adds tools/include in the CFLAGS, this results in the building failure both for native and cross build: In file included from rseq.h:131, from rseq.c:37: rseq-riscv.h:11:10: fatal error: asm/fence.h: No such file or directory To fix it, add the matching tools/arch/$(ARCH)/include path in the CFLAGS and derive ARCH from SUBARCH for standalone native builds where ARCH is not set. Fixes: c92786e179e0 ("KVM: riscv: selftests: Use the existing RISCV_FENCE macro in `rseq-riscv.h`") Cc: stable@vger.kernel.org Signed-off-by: Hui Wang Link: https://patch.msgid.link/20260707082348.36896-1-hui.wang@canonical.com Signed-off-by: Paul Walmsley

selftests/rseq: Fix spelling of accommodate

2026-07-05T20:13:53+00:00

It's spelled with two 'm'. Signed-off-by: Ding Junlin <1746193727@qq.com> Signed-off-by: Thomas Gleixner Reviewed-by: Paul E. McKenney Link: https://patch.msgid.link/tencent_BAB26179A92C5CE28657C0451540E6EE4B05@qq.com

selftests/rseq: Replace glibc-specific __GNUC_PREREQ with portable check

2026-07-02T22:15:01+00:00

Building the rseq selftests against musl libc fails because musl's does not provide the glibc-specific __GNUC_PREREQ macro: error: missing binary operator before token '(' Replace __GNUC_PREREQ(11, 1) with an equivalent check using __GNUC__ and __GNUC_MINOR__ directly. This pattern is portable across all C library implementations and is already used elsewhere in the tools/ tree (e.g., tools/include/linux/string.h). This also allows removing the #include , which was only needed for __GNUC_PREREQ. Fixes: 886ddfba933f ("selftests/rseq: Introduce thread pointer getters") Signed-off-by: Hisam Mehboob Signed-off-by: Thomas Gleixner Link: https://patch.msgid.link/20260618193724.589113-2-hisamshar@gmail.com

selftests/rseq: Add config fragment

2026-06-02T21:20:57+00:00

Currently there is no config fragment for the rseq selftests but there are a couple of configuration options which are required for running them: - CONFIG_RSEQ is required for obvious reasons, it is enabled by default but it doesn't hurt to specify it in case the user is usinsg a defconfig that disables it. - CONFIG_RSEQ_SLICE_EXTENSION is tested by the slice_test test, the test will fail without it. Add a configuration fragment which enables these options, helping encourage CI systems and people doing manual testing to run the tests with all the features. This also requires CONFIG_EXPERT since it is a dependency for slice extension. Signed-off-by: Mark Brown Signed-off-by: Thomas Gleixner Link: https://patch.msgid.link/20260424-selftests-rseq-config-fragment-v2-1-a9475996edcb@kernel.org

selftests/rseq: Expand for optimized RSEQ ABI v2

2026-05-06T15:41:08+00:00

Update the selftests so they are executed for legacy (32 bytes RSEQ region) and optimized RSEQ ABI v2 mode. Fixes: d6200245c75e ("rseq: Allow registering RSEQ with slice extension") Signed-off-by: Thomas Gleixner Signed-off-by: Peter Zijlstra (Intel) Reviewed-by: Dmitry Vyukov Tested-by: Dmitry Vyukov Link: https://patch.msgid.link/20260428224428.009121296%40kernel.org Cc: stable@vger.kernel.org

selftests/rseq: Validate legacy behavior

2026-05-06T15:39:01+00:00

The RSEQ legacy mode behavior requires that the ID fields in the rseq region are unconditionally updated on every context switch and before signal delivery even if not required by the ABI specification. To ensure that this behavior is preserved for legacy users in the future, add a test which validates that with a sleep() and a signal sent to self. Provide a run script which prevents GLIBC from registering a RSEQ region, so that the test can register it's own legacy sized region. Fixes: 566d8015f7ee ("rseq: Avoid CPU/MM CID updates when no event pending") Signed-off-by: Thomas Gleixner Signed-off-by: Peter Zijlstra (Intel) Reviewed-by: Dmitry Vyukov Tested-by: Dmitry Vyukov Link: https://patch.msgid.link/20260428224427.764705536%40kernel.org Cc: stable@vger.kernel.org

selftests/rseq: Make registration flexible for legacy and optimized mode

2026-05-05T14:03:11+00:00

rseq_register_current_thread() either uses the glibc registered RSEQ region or registers it's own region with the legacy size of 32 bytes. That worked so far, but becomes a problem when the kernel implements a distinction between legacy and performance optimized behavior based on the registration size as that does not allow to test both modes with the self test suite. Add two arguments to the function. One to enforce that the registration is not using libc provided mode and one to tell the registration to use the legacy size and not the kernel advertised size. Rename it and make the original one a inline wrapper which preserves the existing behavior. Fixes: 566d8015f7ee ("rseq: Avoid CPU/MM CID updates when no event pending") Signed-off-by: Thomas Gleixner Signed-off-by: Peter Zijlstra (Intel) Reviewed-by: Dmitry Vyukov Tested-by: Dmitry Vyukov Link: https://patch.msgid.link/20260428224427.677889423%40kernel.org Cc: stable@vger.kernel.org

selftests/rseq: Skip tests if time slice extensions are not available

2026-05-05T14:03:11+00:00

Don't fail, skip the test if the extensions are not enabled at compile or runtime. Fixes: 830969e7821a ("selftests/rseq: Implement time slice extension test") Signed-off-by: Thomas Gleixner Signed-off-by: Peter Zijlstra (Intel) Reviewed-by: Dmitry Vyukov Tested-by: Dmitry Vyukov Link: https://patch.msgid.link/20260428224427.597838491%40kernel.org Cc: stable@vger.kernel.org